place/put (your) life in (someone's) hands

(your) life is in (someone's) hands - if your life is in someone's hands, that person is completely responsible for what happens to you, often for whether you live or die.

Every time you drive a car, you put your life in the hands of other motorists.

• be riding high
• be right in the head
• be right on the money
• be right up alley
• be right up arse
• be right up someone's alley
• be right up someone's arse
• be right up someone's street
• be right up street
• be right up there with
• be right up there with someone
• be right up there with something
• be rolling in it
• be rolling in the aisles
• be rotten to the core
• be running on empty
• be run off feet
• be run off your feet
• be rushed off feet
• be rushed off your feet
• someone's hackles rise
• someone's hands are tied
• someone's head on a plate
• someone's head on a platter
• someone's heart is in boots